Swimming pool



FIG. 1 is a perspective view of a swimming pool showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a cross sectional view taken along line 3--3 of FIG. 2;

FIG. 4 is an end cross sectional view, taken along line 4--4 of FIG. 2; and,

FIG. 5 is the opposite end view, taken along line 5--5 of FIG. 2. 

The ornamental design for a swimming pool, as shown and described. 